I think you are running an OMEX on a 2015 Bike is this right ? So , this was an upgrade from the SC Typhoon in your case. The main reason I went with the Delta 400 was mainly for a backup ECU. BUT , there is no doubt that having the ability to connect and tune is big. Yes , there was a noticeable step up in power from the typhoon but I would never tell somebody to spend 650 pounds if their bike is running good as is. My older 2014 bike was a direct swap Typhoon to Delta and there is a person on the forum who has just replaced their Euro 4 OMEX with a Delta 400 and sold the OMEX to another. This is the guy to ask . You can also go the Dyno Jet PCV route for about a third the cost + tuning ? In USA the DynoJet PCV kit is $350 USD , a Delta 400 was 650 Pounds ~ $820 USD already tuned kinda .